As the intensifying Hurricane Dorian heads toward likely landfall along the Florida coast, the storm could coincide with a two-year phenomenon that could lead to even more destruction than a Category 4 hurricane would already bring.
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Royal tides that occur when the moon is closest to Earth. location now in Florida and is likely to continue through Labor Day, a time when Dorian is expected to land.
How will the queens affect what happens to Dorian? Here's a look at the tides and royal tides and what they're doing.
What is the royal tide?
The term "tide king" is a term used to describe a particularly high tide. This is not a scientific term.
What causes the tide of a king?
The ebb and flow occurs when there is an alignment of gravitational pull in the Northern Hemisphere
"Twice a year, when the Earth, the Sun and the Moon alternate, when the Moon and the Sun are in perigee and perihelion, we we usually experience the largest tidal ranges of the year, "according to the North Carolina Tides End Project.
What are Perigee and Perichelion?
Perigee is the name of the point where the moon is closest to Earth.
Perichelion means a point in the orbit of a planet (in this case Earth), an asteroid, or a comet closest to the sun.
What does this have to do with tides?
Several times a year, in spring and autumn, the new or full moon coincides with the periwinkle of the moon.  During full or new moons, the average boundaries of tides are slightly larger. A new or full moon appears when the Sun, Earth, and Moon are nearby. The ebb and flow that this alignment creates is slightly higher than the mid-tides and is referred to as the "Perugian Spring Tides".
What happens when they occur near the time when a tropical system makes land?
A tropical system pushes water inland to make landfall. If this happens during a spring tide in the spring, it pushes an already unusually high tide, even higher, adding property damage and erosion to the coastline.
The marginal tides do not increase the water levels by an unusual amount, but increase them.
When is the next royal tide in Florida?
Royal high tides along Florida's east coast began on Monday and are expected to continue until next Tuesday.
NOAA predicts that high tides will be at their highest point on Thursday and Friday nights on Miami Beach.
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